_____ was appointed as the chief of the International Association of Athletics Federation (IAAF) for a second term ?

1) Sebastian Coe
2) Sergey Bubka
3) Dahlan Jumaan Al Hamad
4) Alberto Juantorena Danger

Explanation:
On September 25, 2019, Britain’s Sebastian Coe was re-elected as the chief of the International Association of Athletics Federation (IAAF) for a second term. A former Olympic and world champion, Coe was previously elected as the head of IAAF in 2015.